eye opening comments from president obama on the syrian rebels and who should pay more taxes and why. abc's barbara walters gets the big story. she sits down with the president and first lady over the holidays. so a lot going on in d.c. >>> also this morning, millions of people that are struggling with depression may get relief the same day, thanks to a new experimental treatment. this could be ground breaking in that world, because typically when you take medication, it takes a month or two to see the effects. you might see it that same day. >> around the holidays, people tend to get depressed. so interesting story. but of course, the big story right now this morning, that huge shopping mall near portland, oregon, 1.4 million square feet in fact. it will be closed today after a gunman wearing camouflage and a white mask opened fire on crowds of holiday shoppers. >> eyewitnesss at the scene are describing scenes of horror include the town center where the shooter killed two people, wounded a third before taking his own life. >> reporter: chaos inside a suburban portland mall as a gunm